Add rename detection to tree comparisons#278

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roend83 wants to merge 3 commits intolibgit2:vNextfrom

roend83:diff-rename-detection

Commits on Feb 7, 2013

Added rename detection to tree comparisons
roend83
committed

Commits on Feb 8, 2013

Refactored interface to enable rename and copy detection and added tests. Note that copy tests are currently failing.
roend83
committed

Commits on Feb 9, 2013

Fixed broken copy detection tests and updated rename and copy detection API
roend83
committed